Describe your issue or idea
We can currently include JS and CSS libraries via hook_library_info() but not PHP libraries. In Drupal 7, the Libraries API also allowed for PHP libraries. In order to completely eliminate the Libraries API from the Backdrop workflow, it would be nice to include support for PHP libraries into the core Library system.
GitHub Issue #:
2911
Recent comments
I don't think there is currently a way to set back references in bulk for existing books that already reference an author... I believe you can do this with CER through the UI...
Backlinks for Entity Reference?
If choosing the Views approach you can also use https://backdropcms.org/project/eva which allows you to place the list with more flexibility.
Backlinks for Entity Reference?
Thanks. It still took a lot of trial and error for all the settings within the settings, but I eventually got it to display based on these instructions.
Backlinks for Entity Reference?